John Deere 748H Skidder is divided into different sections. Each section covers a specific component or system with detailed illustrations. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. The printer-ready PDF documents work like a charm on all kinds of devices. This document is printable, without restrictions, contains searchable text, bookmarks, crosslinks for easy navigation.

OMT230121 - John Deere 748H Skidder Operator's Manual.pdf
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omt230125 - John Deere Skidder 748H -630435.pdf
omt230126 - John Deere Skidder 748H -630435.pdf
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Category: Operator's Manual
Language: Spanish English French Italian German Portuguese Russian

TABLE OF CONTENTS
Section 1-1: Safety—Safety And Operator Conveniences....16
  Safety and Operator Convenience Features....17
Section 1-2: Safety—General Precautions....19
  Information for European Union Directives Compliance....20
  Recognize Safety Information....23
  Follow Safety Instructions....24
  Operate Only If Qualified....25
  Wear Protective Equipment....26
  Avoid Unauthorized Machine Modifications....27
  Inspect Machine....28
  Stay Clear of Moving Parts....29
  Avoid High-Pressure Oils....30
  Avoid High-Pressure Fluids....31
  Do Not Use Starting Fluid....32
  Work In Ventilated Area....33
  Prevent Fires....34
  Prevent Battery Explosions....35
  Handle Chemical Products Safely....36
  Dispose of Waste Properly....37
  Prepare for Emergencies....38
  Clean Debris from Machine....39
Section 1-3: Safety—Operating Precautions....40
  Use Steps and Handholds Correctly....41
  Start Only From Operator's Seat....42
  Use and Maintain Seat Belt....43
  Prevent Unintended Machine Movement....44
  Avoid Work Site Hazards....45
  Operate Machine Safely....46
  Keep Riders Off Machine....47
  Avoid Backover Accidents....48
  Avoid Machine Tip Over....49
  Operating on Slopes....51
  Operating or Traveling On Public Roads....52
  Inspect and Maintain ROPS....53
  Keep the Operator Protective Structure (OPS) in Place....54
  Add and Operate Attachments Safely....55
Section 1-4: Safety—Maintenance Precautions....56
  Park and Prepare for Service Safely....57
  Service Tires Safely....58
  Service Cooling System Safely....59
  Remove Paint Before Welding or Heating....60
  Make Welding Repairs Safely....61
  Drive Metal Pins Safely....62
Section 1-5: Safety—Safety Signs....63
  Skidder Safety Signs....64
  Replace Safety Signs....67
Section 2-1: Operation—Operator's Station....68
  Adjusting Seat....69
  Steering Wheel....70
  Horn Button....71
  Monitor Panel Functions....72
  Pedals....75
  Levers....76
  Switches....78
  Dual Mode Steering....80
  Work Lights—If Equipped....81
  Dome Light....82
  Defrosting, Heating, and Air Conditioning Controls....83
  Windshield Wiper and Washer....84
  Windshield Washer Fluid Tank....85
  Removing Operator's Station Door Window Screens....86
  Opening Secondary Exit....87
  Operator's Manual Holder....88
  Fire Extinguisher....89
  Pressurized Water System—If Equipped....91
Section 2-2: Operation—Operating the Machine....92
  Inspect Machine Daily Before Starting....93
  Engine Break-In Period....95
  Starting the Engine....96
  Check Monitor Panel....98
  Engine Warm-Up....99
  Cold Weather Transmission Disconnect Handle—If Equipped....100
  Cold Weather Warm-Up....101
  Blade Control Lever Operation....102
  Winch Control Lever Operation....104
  Single Lever Pilot Control Operation....106
  Differential Lock Switch....108
  Engine Speed Controls....109
  Service Brake....110
  Transmission Gear Selector....111
  Inching Pedal Operation....114
  De-clutch Function Operation—(S.N. 620843— )....115
  Reversing Fan Operation....117
  Parking the Machine....118
  Lowering Hydraulic Equipment to Ground With Engine Off....120
  Fastening Cable to Winch Drum—4000 Series....123
  Fastening Cable to Winch Drum—6000 Series....127
  Winch Free Spool Drag Adjustment....129
  Grapple Head....130
  Grapple Dampener....131
  Grapple Shock....132
  Transporting Grapple—If Equipped....133
  Loading Machine on a Trailer....134
  Towing Procedure....135
Section 3-1: Maintenance—Machine....140
  Diesel Fuel....141
  Lubricity of Diesel Fuel....142
  Handling and Storing Diesel Fuel....143
  Biodiesel Fuel....144
  Testing Diesel Fuel....146
  Minimizing the Effect of Cold Weather on Diesel Engines....147
  Alternative and Synthetic Lubricants....149
  Diesel Engine Break-In Oil....150
  Diesel Engine Oil....151
  Diesel Engine Oil and Filter Service Intervals....178
  Hydraulic System Oil....155
  Transmission, Park Brake, Differential, Cab Tilt Hydraulic Pump and Winch Oil....157
  Grease....158
  Heavy Duty Diesel Engine Coolant....159
  Drain Intervals for Diesel Engine Coolant....161
  John Deere COOL-GARD™ II COOLANT EXTENDER....162
  Supplemental Coolant Additives....163
  Operating in Warm Temperature Climates....164
  Additional Information About Diesel Engine Coolants and John Deere COOL-GARD™ II COOLANT EXTENDER....165
  Testing Diesel Engine Coolant....167
Section 3-2: Maintenance—Periodic Maintenance....168
  Service Your Machine at Specified Intervals....169
  Check the Hour Meter Regularly....170
  Fuel Tank....171
  Battery Disconnect....172
  Prepare Machine for Maintenance....173
  Locking Machine Frames....174
  Opening the Grille....175
  Opening Engine Side Shields....176
  Fluid Analysis Program Test Kits and 3-Way Coolant Test Kit....177
  Service Intervals....178
  Required Parts....181
Section 3-3: Maintenance—As Required....183
  Clean Debris from Coolers....184
  Inspect Serpentine Belt....185
  Inspecting and Cleaning Dusty Primary and Secondary Element....186
  Check Tire Pressure....187
  Check Wheel Bolt Torque....189
  Clean Fuel Tank Filler Screen....190
  Fill and Charge Pressurized Water System—If Equipped....191
  Check Fire Extinguisher Charge....193
  Clean Hydraulic Tank Filler Screen....194
  Clean Cab Recirculating Air Filter....197
  Clean Fresh Air Filter—Air Conditioning....198
  Check Coolant....275
Section 3-4: Maintenance—Every 10 Hours or Daily....201
  Check Coolant Level....202
  Check Engine Oil Level....205
  Check and Drain Primary Fuel Filter Water Separator....207
  Clean Air Cleaner Unloader Valve....208
  Grease Frame Hinge Pivots....209
  Grease Boom and Arch Cylinder Pins and Arch-to-Frame Pivot—If Equipped....210
  Grease Dampener, Yoke, and Crosshead Pins—If Equipped....211
  Grease Tongs and Tong Cylinders—If Equipped....213
  Grease Boom-to-Arch Pivot—If Equipped....214
  Check Transmission Oil Level....215
  Check Hydraulic System Oil Level....218
Section 3-5: Maintenance—Every 100 Hours....220
  Grease Stacking Blade and Cylinder Pivots....221
  Grease Front Axle Pivots and Front Steering Cylinder Pins....222
  Grease Axle Pinion Seals....223
  Grease Rear Steering Cylinder Pins....225
  Grease Winch Fairlead Rollers....226
  Grease Front Axle Drive Shaft U-Joints and Transmission Output Shaft Seal....227
  Grease Rear Axle Drive Shaft U-Joints, Telescoping Splines, Support Bearing, and Transmission Output Shaft Seal....228
  Grease Winch Drive Shaft U-Joints and Telescoping Splines....229
  Grease Engine Drive Shaft U-Joints and Telescoping Splines....230
Section 3-6: Maintenance—Initial Service—250 Hours....231
  Replace Transmission Oil Filter....290
  Replace Hydraulic Oil Filter....281
  Replace Reversing Cooling Fan Filter....235
  Change Engine Break-in Oil and Replace Filter....236
  Change Front Axle Oil....270
  Change Rear Axle Oil....272
Section 3-7: Maintenance—Every 250 Hours....244
  Take Engine Oil Sample....245
  Take Hydraulic Oil Sample....246
Section 3-8: Maintenance—Every 500 Hours....247
  Change Engine Oil and Replace Filter....248
  Check Coolant System Radiator, Tubes, Connectors....252
  Replace Primary Fuel Filter (Water Separator)....253
  Replace Final Fuel Filter....255
  Check Brake Accumulator Action....257
  Check Rear Axle Oil Level....258
  Check Front Axle Oil Level....260
  Check Air Intake Hoses....262
  Check Battery Electrolyte Level and Terminals....263
  Take Fluid Samples....266
Section 3-9: Maintenance—Every 1000 Hours....267
  Replace Air Cleaner Elements....268
  Replace Air Cleaner Unloader Valve....269
  Change Front Axle Oil....270
  Change Rear Axle Oil....272
  Grease Grapple Rotate Bearing—If Equipped....274
  Check Coolant....275
Section 3-10: Maintenance—Every 2000 Hours....276
  Change Hydraulic Oil....277
  Replace Hydraulic Oil Filter....281
  Reversing Cooling Fan Oil Filter....282
  Replace Hydraulic Reservoir Breather Filter....283
  Transmission Breather Filter—Replace....284
  Change Transmission Oil, Replace Filter, and Clean Suction Screen....285
  Replace Transmission Oil Filter....290
  Change Winch Oil....292
  Inspect Engine Crankshaft Dampener....294
  Check and Adjust Valve Lash....295
Section 3-11: Maintenance—Every 4000 Hours....296
  Replace Engine Crankshaft Dampener....297
Section 3-12: Maintenance—Every 6000 Hours....298
  Draining the Cooling System....299
  Filling the Cooling System....304
Section 4-1: Miscellaneous—Machine....309
  Check Engine Idle Speeds....310
  Drain Final Fuel Filter....311
  Clean Crankcase Vent Tube....312
  Check Receiver-Dryer Moisture Indicator—If Equipped....313
  Hydraulic Cab Tilt Procedure....314
  Checking Coolant System....320
  Testing the Coolant Level—Protection Level....323
  Do Not Service or Adjust Injection Nozzles or Injection Pump....324
  Do Not Service Control Valves, Cylinders, Pumps or Motors....325
  Bleed Fuel System....326
  Precautions for Alternator....328
  Handling, Checking and Servicing Batteries Carefully....329
  Using Booster Batteries....332
  Using Booster Batteries—24-Volt System....334
  Using Battery Charger....335
  Replacing Batteries....337
  Welding On Machine....338
  Replacing Fuses....339
  Checking Neutral Start System....343
  Servicing Air Conditioning System....345
  Checking Park Brake....346
  Grapple Damper Adjustment....347
  Grapple Shock Replace—If Equipped....350
  Brake Pedal Adjustment....351
  Checking Windshield Regularly....352
  Keeping ROPS Installed Properly....353
  Hardware Torque Specifications....354
  Unified Inch Bolt and Screw Torque Values....355
  Metric Bolt and Screw Torque Values....357
  Check Oil Lines And Fittings....359
  Dual Wheel Installation....360
Section 4-2: Miscellaneous—Operational Checkout....361
  Complete Machine Operational Checkout....362
Section 4-3: Miscellaneous—Troubleshooting....414
  Using Troubleshooting Charts....415
  Engine Troubleshooting....416
  Electrical System Troubleshooting....420
  Transmission and Park Brake Troubleshooting....423
  Axle Differential Troubleshooting....427
  Service Brakes Troubleshooting....428
  Hydraulic System Troubleshooting....429
  Steering System Troubleshooting....431
  Dual Mode Steering System Troubleshooting....432
  Hydraulic Fan Troubleshooting....433
  Winch Troubleshooting....434
  Air Conditioning System Troubleshooting....435
  Heater System Troubleshooting....436
Section 4-4: Miscellaneous—Storage....437
  Prepare Machine for Storage....438
  Monthly Storage Procedure....440
Section 4-5: Miscellaneous—Machine Numbers....442
  Record Product Identification Number (PIN)....443
  Record Engine Serial Number....444
  Record Winch Serial Number....445
  Record Transmission Serial Number....446
  Keep Proof of Ownership....447
  Keep Machines Secure....448
Section 4-6: Miscellaneous—Specifications....449
  748H Cable Skidder—Machine Specifications....450
  748H Cable Skidder—Winch Specifications—4000 Series....452
  748H Cable Skidder—Winch Specifications—6000 Series....454
  748H Cable Skidder—Drain and Refill Capacities....455
  748H Grapple Skidder—Machine Dimensions....456
  748H Grapple Skidder—Grapple Dimensions....460
  748H Grapple Skidder—Machine Specifications....461
  748H Grapple Skidder—Winch Specifications—4000 Series....463
  748H Grapple Skidder—Winch Specifications—6000 Series....465
  748H Grapple Skidder—Drain and Refill Capacities....466
  Ground Speeds....467
  EC Declaration of Conformity....468
 
John Deere 748H Skidder Operator's Manual (OMT230121)